Remove override of PKTUSB mode for Icom rigs -- don't think we need this

Was causing mode toggling on IC7300 during PTT transitions in JTDX

rigs/icom/icom.c

@@ -1809,6 +1809,7 @@ int icom_set_mode_with_data(RIG *rig, vfo_t vfo, rmode_t mode,
 
     switch (mode)
     {
+#if 0 // don't think this is needed anymore -- W9MDB 20210828
     case RIG_MODE_PKTUSB:
         // xFE xFE x6E xE0 x1A x06 x01 xFD switches mod input from MIC to ACC
         // This apparently works for IC-756ProIII but nobody has asked for it yet
@@ -1826,6 +1827,7 @@ int icom_set_mode_with_data(RIG *rig, vfo_t vfo, rmode_t mode,
     case RIG_MODE_PKTAM:
         icom_mode = RIG_MODE_AM;
         break;
+#endif
 
     default:
         icom_mode = mode;

rigs/icom/icom.h

@@ -30,7 +30,7 @@
 #include <sys/time.h>
 #endif
 
-#define BACKEND_VER "20210824"
+#define BACKEND_VER "20210828"
 
 #define ICOM_IS_SECONDARY_VFO(vfo) ((vfo) & (RIG_VFO_B | RIG_VFO_SUB | RIG_VFO_SUB_B | RIG_VFO_MAIN_B))
 #define ICOM_GET_VFO_NUMBER(vfo) (ICOM_IS_SECONDARY_VFO(vfo) ? 0x01 : 0x00)